NSO Level 1- Science Olympiad (SOF) Class 10: Questions 184 - 188 of 986

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Question number: 184

» Electricity

Edit
MCQ▾

Question

Read the given statements and mark the correct option

Statement 1: Electrical power is the total work done in maintaining an electrical current in an electric circuit for given time

Statement 2: Electrical energy is the rate at which electrical energy is consumed by an appliance

Choices

Choice (4) Response

a.

Statements 1 and 2 are incorrect

b.

Statements 1 and 2 are correct

c.

Only statement 2 is correct

d.

Only statement 1 is correct

Question number: 185

» Life Processes

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MCQ▾

Question

Which is not correct for Phloem?

Choices

Choice (4) Response

a.

Transport of food upward

b.

Transport of food downward

c.

Transport of food

d.

None of the above

Question number: 186

» Electricity

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MCQ▾

Question

The advantages of connecting electrical devices in parallel with the battery instead of connecting them in series is

Choices

Choice (4) Response

a.

There is no division of Current among the appliances when connected in parallel

b.

There is no division of Voltage among the appliances when connected in parallel

c.

There is no division of Voltage among the appliances when connected in Series

d.

All of the above

Question number: 187

» Electricity

Edit
MCQ▾

Question

How many resistors (in parallel) are required to carry 5 A on a 220 V line?

Choices

Choice (4) Response

a.

4

b.

20

c.

1

d.

8

Question number: 188

» Reproduction in Organisms

Edit
Matching-Pair▾

Question

Find the pair which does not match:

Choices

Choice (4) Response

a.

Embryogenesis

Zygotes undergo mitotic cell division & differentiation

b.

Gametogenesis

The embryos are usually diploid

c.

Embryogenesis

It includes both meiosis & mitosis

d.

Both b. and c. are correct